The pipe connects to four reservoirs which supply about 8000 properties in Marcoola, Yaroomba, Mount Coolum, Coolum, Peregian Springs and Peregian Breeze.
Unitywater Executive Manager Customer Delivery Rob Dowling said Unitywater had concerns about the condition of the original main.
“This is only a young pipe, about four years old, and because it has broken twice in such a short period of time, we are investigating the cause of these breaks as a priority,” he said.
“This bypass pipe will supply our customers in the affected areas while we address our concerns with the pipe and consider our options for a long-term solution.”
Unitywater is continuing to ask residents to limit their outdoor water use, including sprinklers, until further notice.
“Our priority is keeping a continuous water supply to our customers in these areas and we sincerely thank them for working with us while we resolve this,” Mr Dowling said.
“Our reservoirs have been filling well but we need the community’s help to keep them at a suitable level to meet the expected demand during the hot, long weekend.
“Our staff will be working throughout the next four days to ensure the bypass pipe can deliver water to these areas as soon as possible.
“We would like to thank residents again for their continued patience and assistance, and apologise for the inconvenience as we work through this emergency situation.”
Mr Dowling said as a courtesy precaution, residents in the affected areas could collect bottled water from Coolum State High School, Havana Road East, Coolum until 9am Saturday when this site will close for the school to prepare for term one. From 9am Saturday bottled water can be collected from Peregian Springs Ridges Recreation Club, 222 The Avenue, Peregian Springs.
Image: Workers replace a section of water main in Finland Road, Bli Bli.